The table shows values of a rational function . x = -3, -2, -1, 0, 1, 2, 3 f(x) -2, -2.5, -4, undefined, 2, 0.5, 0 A What changes are made to the table of values for the function ? B What changes are made to the table of values for the function ? C What changes are made to the table of values for the function ?